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1 | /* |
1 | /* |
2 | * Copyright (C) 2005 Jakub Jermar |
2 | * Copyright (C) 2005 Jakub Jermar |
3 | * All rights reserved. |
3 | * All rights reserved. |
4 | * |
4 | * |
5 | * Redistribution and use in source and binary forms, with or without |
5 | * Redistribution and use in source and binary forms, with or without |
6 | * modification, are permitted provided that the following conditions |
6 | * modification, are permitted provided that the following conditions |
7 | * are met: |
7 | * are met: |
8 | * |
8 | * |
9 | * - Redistributions of source code must retain the above copyright |
9 | * - Redistributions of source code must retain the above copyright |
10 | * notice, this list of conditions and the following disclaimer. |
10 | * notice, this list of conditions and the following disclaimer. |
11 | * - Redistributions in binary form must reproduce the above copyright |
11 | * - Redistributions in binary form must reproduce the above copyright |
12 | * notice, this list of conditions and the following disclaimer in the |
12 | * notice, this list of conditions and the following disclaimer in the |
13 | * documentation and/or other materials provided with the distribution. |
13 | * documentation and/or other materials provided with the distribution. |
14 | * - The name of the author may not be used to endorse or promote products |
14 | * - The name of the author may not be used to endorse or promote products |
15 | * derived from this software without specific prior written permission. |
15 | * derived from this software without specific prior written permission. |
16 | * |
16 | * |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
27 | */ |
27 | */ |
28 | 28 | ||
29 | /** @addtogroup sparc64 |
29 | /** @addtogroup sparc64 |
30 | * @{ |
30 | * @{ |
31 | */ |
31 | */ |
32 | /** @file |
32 | /** @file |
33 | */ |
33 | */ |
34 | 34 | ||
35 | #include <arch/asm.h> |
35 | #include <arch/asm.h> |
36 | #include <cpu.h> |
36 | #include <cpu.h> |
37 | #include <arch.h> |
37 | #include <arch.h> |
38 | #include <print.h> |
38 | #include <print.h> |
39 | #include <arch/register.h> |
39 | #include <arch/register.h> |
40 | #include <genarch/ofw/ofw_tree.h> |
40 | #include <genarch/ofw/ofw_tree.h> |
41 | #include <arch/types.h> |
41 | #include <arch/types.h> |
42 | #include <arch/drivers/tick.h> |
42 | #include <arch/drivers/tick.h> |
43 | #include <arch/mm/page.h> |
43 | #include <arch/mm/page.h> |
44 | #include <arch/mm/tlb.h> |
44 | #include <arch/mm/tlb.h> |
45 | #include <macros.h> |
45 | #include <macros.h> |
46 | 46 | ||
47 | /** Perform sparc64 specific initialization of the processor structure for the current processor. */ |
47 | /** Perform sparc64 specific initialization of the processor structure for the current processor. */ |
48 | void cpu_arch_init(void) |
48 | void cpu_arch_init(void) |
49 | { |
49 | { |
50 | ofw_tree_node_t *node; |
50 | ofw_tree_node_t *node; |
51 | uint32_t mid; |
51 | uint32_t mid; |
52 | uint32_t clock_frequency = 0; |
52 | uint32_t clock_frequency = 0; |
53 | upa_config_t upa_config; |
53 | upa_config_t upa_config; |
54 | 54 | ||
55 | upa_config.value = upa_config_read(); |
55 | upa_config.value = upa_config_read(); |
56 | CPU->arch.mid = upa_config.mid; |
56 | CPU->arch.mid = upa_config.mid; |
57 | 57 | ||
58 | /* |
58 | /* |
59 | * Detect processor frequency. |
59 | * Detect processor frequency. |
60 | */ |
60 | */ |
61 | node = ofw_tree_find_child_by_device_type(ofw_tree_lookup("/"), "cpu"); |
61 | node = ofw_tree_find_child_by_device_type(ofw_tree_lookup("/"), "cpu"); |
62 | while (node) { |
62 | while (node) { |
63 | ofw_tree_property_t *prop; |
63 | ofw_tree_property_t *prop; |
64 | 64 | ||
65 | prop = ofw_tree_getprop(node, "upa-portid"); |
65 | prop = ofw_tree_getprop(node, "upa-portid"); |
66 | if (prop && prop->value) { |
66 | if (prop && prop->value) { |
67 | mid = *((uint32_t *) prop->value); |
67 | mid = *((uint32_t *) prop->value); |
68 | if (mid == CPU->arch.mid) { |
68 | if (mid == CPU->arch.mid) { |
69 | prop = ofw_tree_getprop(node, "clock-frequency"); |
69 | prop = ofw_tree_getprop(node, "clock-frequency"); |
70 | if (prop && prop->value) |
70 | if (prop && prop->value) |
71 | clock_frequency = *((uint32_t *) prop->value); |
71 | clock_frequency = *((uint32_t *) prop->value); |
72 | } |
72 | } |
73 | } |
73 | } |
74 | node = ofw_tree_find_peer_by_device_type(node, "cpu"); |
74 | node = ofw_tree_find_peer_by_device_type(node, "cpu"); |
75 | } |
75 | } |
76 | 76 | ||
77 | CPU->arch.clock_frequency = clock_frequency; |
77 | CPU->arch.clock_frequency = clock_frequency; |
78 | tick_init(); |
78 | tick_init(); |
79 | 79 | ||
80 | /* |
80 | /* |
81 | * Lock CPU stack in DTLB. |
81 | * Lock CPU stack in DTLB. |
82 | */ |
82 | */ |
83 | uintptr_t base = ALIGN_DOWN(config.base, 1<<KERNEL_PAGE_WIDTH); |
83 | uintptr_t base = ALIGN_DOWN(config.base, 1<<KERNEL_PAGE_WIDTH); |
84 | 84 | ||
85 | if (!overlaps((uintptr_t) CPU->stack, PAGE_SIZE, base, (1<<KERNEL_PAGE_WIDTH))) { |
85 | if (!overlaps((uintptr_t) CPU->stack, PAGE_SIZE, base, (1<<KERNEL_PAGE_WIDTH))) { |
86 | /* |
86 | /* |
87 | * Kernel stack of this processor is not locked in DTLB. |
87 | * Kernel stack of this processor is not locked in DTLB. |
88 | * First, demap any already existing mappings. |
88 | * First, demap any already existing mappings. |
89 | * Second, create a locked mapping for it. |
89 | * Second, create a locked mapping for it. |
90 | */ |
90 | */ |
91 | dtlb_demap(TLB_DEMAP_PAGE, TLB_DEMAP_NUCLEUS, (uintptr_t) CPU->stack); |
91 | dtlb_demap(TLB_DEMAP_PAGE, TLB_DEMAP_NUCLEUS, (uintptr_t) CPU->stack); |
92 | dtlb_insert_mapping((uintptr_t) CPU->stack, KA2PA(CPU->stack), PAGESIZE_8K, true, true); |
92 | dtlb_insert_mapping((uintptr_t) CPU->stack, KA2PA(CPU->stack), PAGESIZE_8K, true, true); |
93 | } |
93 | } |
94 | - | ||
95 | /* |
- | |
96 | * Set the D-cache active flag. |
- | |
97 | * Needed for the D-cache to work. |
- | |
98 | */ |
- | |
99 | CPU->arch.dcache_active = 1; |
- | |
100 | } |
94 | } |
101 | 95 | ||
102 | /** Read version information from the current processor. */ |
96 | /** Read version information from the current processor. */ |
103 | void cpu_identify(void) |
97 | void cpu_identify(void) |
104 | { |
98 | { |
105 | CPU->arch.ver.value = ver_read(); |
99 | CPU->arch.ver.value = ver_read(); |
106 | } |
100 | } |
107 | 101 | ||
108 | /** Print version information for a processor. |
102 | /** Print version information for a processor. |
109 | * |
103 | * |
110 | * This function is called by the bootstrap processor. |
104 | * This function is called by the bootstrap processor. |
111 | * |
105 | * |
112 | * @param m Processor structure of the CPU for which version information is to be printed. |
106 | * @param m Processor structure of the CPU for which version information is to be printed. |
113 | */ |
107 | */ |
114 | void cpu_print_report(cpu_t *m) |
108 | void cpu_print_report(cpu_t *m) |
115 | { |
109 | { |
116 | char *manuf, *impl; |
110 | char *manuf, *impl; |
117 | 111 | ||
118 | switch (m->arch.ver.manuf) { |
112 | switch (m->arch.ver.manuf) { |
119 | case MANUF_FUJITSU: |
113 | case MANUF_FUJITSU: |
120 | manuf = "Fujitsu"; |
114 | manuf = "Fujitsu"; |
121 | break; |
115 | break; |
122 | case MANUF_ULTRASPARC: |
116 | case MANUF_ULTRASPARC: |
123 | manuf = "UltraSPARC"; |
117 | manuf = "UltraSPARC"; |
124 | break; |
118 | break; |
125 | case MANUF_SUN: |
119 | case MANUF_SUN: |
126 | manuf = "Sun"; |
120 | manuf = "Sun"; |
127 | break; |
121 | break; |
128 | default: |
122 | default: |
129 | manuf = "Unknown"; |
123 | manuf = "Unknown"; |
130 | break; |
124 | break; |
131 | } |
125 | } |
132 | 126 | ||
133 | switch (CPU->arch.ver.impl) { |
127 | switch (CPU->arch.ver.impl) { |
134 | case IMPL_ULTRASPARCI: |
128 | case IMPL_ULTRASPARCI: |
135 | impl = "UltraSPARC I"; |
129 | impl = "UltraSPARC I"; |
136 | break; |
130 | break; |
137 | case IMPL_ULTRASPARCII: |
131 | case IMPL_ULTRASPARCII: |
138 | impl = "UltraSPARC II"; |
132 | impl = "UltraSPARC II"; |
139 | break; |
133 | break; |
140 | case IMPL_ULTRASPARCII_I: |
134 | case IMPL_ULTRASPARCII_I: |
141 | impl = "UltraSPARC IIi"; |
135 | impl = "UltraSPARC IIi"; |
142 | break; |
136 | break; |
143 | case IMPL_ULTRASPARCII_E: |
137 | case IMPL_ULTRASPARCII_E: |
144 | impl = "UltraSPARC IIe"; |
138 | impl = "UltraSPARC IIe"; |
145 | break; |
139 | break; |
146 | case IMPL_ULTRASPARCIII: |
140 | case IMPL_ULTRASPARCIII: |
147 | impl = "UltraSPARC III"; |
141 | impl = "UltraSPARC III"; |
148 | break; |
142 | break; |
149 | case IMPL_ULTRASPARCIV_PLUS: |
143 | case IMPL_ULTRASPARCIV_PLUS: |
150 | impl = "UltraSPARC IV+"; |
144 | impl = "UltraSPARC IV+"; |
151 | break; |
145 | break; |
152 | case IMPL_SPARC64V: |
146 | case IMPL_SPARC64V: |
153 | impl = "SPARC 64V"; |
147 | impl = "SPARC 64V"; |
154 | break; |
148 | break; |
155 | default: |
149 | default: |
156 | impl = "Unknown"; |
150 | impl = "Unknown"; |
157 | break; |
151 | break; |
158 | } |
152 | } |
159 | 153 | ||
160 | printf("cpu%d: manuf=%s, impl=%s, mask=%d (%dMHz)\n", |
154 | printf("cpu%d: manuf=%s, impl=%s, mask=%d (%dMHz)\n", |
161 | m->id, manuf, impl, m->arch.ver.mask, m->arch.clock_frequency/1000000); |
155 | m->id, manuf, impl, m->arch.ver.mask, m->arch.clock_frequency/1000000); |
162 | } |
156 | } |
163 | 157 | ||
164 | /** @} |
158 | /** @} |
165 | */ |
159 | */ |
166 | 160 |